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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE CICLOHEXANOL E/OU CICLOHEXANONA

PublicadaInvention Patent

Application data

Number

PI8901880

Type

Invention Patent

Filing

04/20/1989

Publication

11/28/1989

Progress at the INPI

  1. Filing04/20/89
  2. Publication11/28/89
  3. Examination04/02/91
  4. Allowance12/10/96
  5. Grant01/21/98
  6. Expired12/26/12

The letters patent expired on 12/26/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Stamicarbon B.V

NL

See this company's full portfolio

Inventors

F. B. (pessoa física)

NL

P. G. (pessoa física)

NL

Technical data

Priority claims

NL

8801036 · 04/21/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/28/1989

RPI 997

Pedido de patente depositado

#2.1

05/30/1989

RPI 971

Carta-patente expirada

#21.1

Patente extinta em 20/04/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

01/21/1998

RPI 1413

Notificação para pagamento de retribuição

#13.1

05/13/1997

RPI 1380

Deferimento

#9.1

12/10/1996

RPI 1358

Exigência - art. 36 da LPI

#6.1

05/09/1995

RPI 1275

Solicitação de exame técnico

#4.1

04/02/1991

RPI 1061

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